Preventing controlled substance diversion in perioperative settings: a narrative review

Diversion of controlled substances in the perioperative setting is an ongoing challenge, with consequences for patients, anesthesiologists, perioperative staff, and health care facilities alike. Perioperative environments are at high risk for diversion, since controlled substances are frequently handled in these settings, with varying levels of oversight. In this narrative review, we summarize strategies for preventing diversion of controlled substances in perioperative settings (i.e., operating rooms, endoscopy suites, and postanesthesia recovery units).

We performed a targeted literature search in PubMed MEDLINE, Embase, Scopus, Web of Science, the Cochrane Register of Controlled trials, and the Cochrane Database of Systematic Reviews, as well as a manual search for additional references. We used terminology related to drug diversion, drug abuse, anesthesiologists, pharmacists, physicians, operating room personnel, and controlled substances.

Many strategies have been described for preventing diversion in perioperative settings, and these are broadly categorized into: education, distribution, auditing, or provider screening. Some of these approaches may be time- and resource-intensive. There is limited evidence to inform anesthesia departments' choice of which strategies to adopt.

Although awareness of perioperative controlled substance diversion has been improving, there are too few data to suggest an optimal approach. Anesthesia departments will need to work collaboratively with hospital pharmacies and actively select strategies that are reasonable given local resources.